consulate in benghazi, libya, arriving at andrews air force base in maryland. u.s. officials are investigating whether the assault was a terrorist attack that seized to the presses in the arab world over an anti- muslim video. >> chris stevens was everything america could want in an ambassador, as the whole country has come to see. >> reporter: a radical islamic group is the leading suspect in the attacks. at least four people have been taken into custody in connection with the attacks. top libyan officials believe the attack on the u.s. embassy was premeditated and highly organized. >> this was a deliberate and preplanned attack in every sense of the word. >> reporter: demonstrationed sparked by the anti-islamic film said to denigrate the prophet muhammad spreading to nearly 20 countries and the west bank, among them yemen, afghanistan, great grain and india. security force -- great britain and india. security forces opening fire in libya killing at least one person. egyptian officials clashing with the groups in cairo. israeli officials say about 400 people clashe